Noriko Sakai, a 38-year-old former pop idol indicted on drug charges, was released on ¥5 million bail Thursday following her Aug. 8 arrest.
Immediately after her release, Sakai bowed her head in front of some 300 reporters and said, "I'm really sorry."
Later at a news conference, Sakai said she would reflect on her actions.
"I will reflect on my sin and promise that I will never again do such a bad thing," she said.
"Because of my weakness, I was defeated against my own weakness," she said, wiping away tears. "I am so sorry for my fans in Japan and overseas."
Sakai's lawyer said she will be admitted to a hospital to undergo a "treatment for her mental state."
About 500 people from various media organizations attended the press conference, which lasted for 10 minutes. Because she is facing trial, Sakai did not answer questions from reporters.
